2000001221222 has 16 divisors (see below), whose sum is σ = 3014192043072. Its totient is φ = 995280835560.

The previous prime is 2000001221221. The next prime is 2000001221261. The reversal of 2000001221222 is 2221221000002.

It is a junction number, because it is equal to n+sod(n) for n = 2000001221197 and 2000001221206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000001221221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2184788 + ... + 2961975.

It is an arithmetic number, because the mean of its divisors is an integer number (188387002692).

Almost surely, 2^{2000001221222} is an apocalyptic number.

2000001221222 is a deficient number, since it is larger than the sum of its proper divisors (1014190821850).

2000001221222 is a wasteful number, since it uses less digits than its factorization.

2000001221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5147683.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2000001221222 its reverse (2221221000002), we get a palindrome (4221222221224).

The spelling of 2000001221222 in words is "two trillion, one million, two hundred twenty-one thousand, two hundred twenty-two".